i'm geoffrey brown. on the newshour this labor day, we report on president obama's request to congress to approve $50 billion for transportation and infrastructure spending to help create new jobs. and paul solmon examines the eroding cloud organized labor in these economic hard times. >> without the workers, without labor, where would their company be? >> we're ready to continue to operate the facility with our temporary work force. >> brown: then judy woodruff previews the mid-term elections with local public broadcast correspondents in california, nevada, ohio and pennsylvania as campaigning heads into the final eight-week stretch. special correspondent in pakistan details the health and safety dangers facing nearly eight million children in the aftermath of the flood disaster. philanthropy expert s assess the response to pakistani flood relief efforts and wrapping up our series on iraq, fred de sam lazaro reports on the day-to-day difficulties facing iraqis who fled their homeland. >> reporter: seven